Qotom Denverton fanless system with 4 SFP+

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azhagan

New Member
Jan 14, 2024
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0
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What transceivers did you use? Do the ports you use make a difference?
I have tried 10gtek and another brand 10gbaseT receivers as well as a Fiber receiver, and everything at least in ix0 is slow. I'll test is on another sfp port this week to see if that is the issue.

Thanks!
 

blunden

Active Member
Nov 29, 2019
480
145
43
I have tried 10gtek and another brand 10gbaseT receivers as well as a Fiber receiver, and everything at least in ix0 is slow. I'll test is on another sfp port this week to see if that is the issue.

Thanks!
Could you be a bit more descriptive? Is the resulting network speed slow? Does the device in general become slow to interact with?
 

SCS

New Member
Feb 16, 2017
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I have one of these with an Atom C3758R, and put 2 SFP+ 10G adapters in there and everything slows to a crawl. The 2.5 GB ports seems to work fine without any issues. I've tried with OPNsense, VyOS and OpenWRT, and facing the same issues. Any thoughts?
I haven't looked at this deeply but I do have two I'm playing with, although I'm not seeing much as far a details for configuring it in pfSense.

Trying to get this to work via Google Fi cellular service running on T-Mobil here in the US.

I'd just like secondary ISP option. I may resort to adding a cable option if I can get them down to a cheap enough monthly cost. At that point I may still look to get the cellular as a tertiary option as I currently have unlimited data, and unlimited free data sims.
1711828343480.png
 

azhagan

New Member
Jan 14, 2024
4
0
1
Could you be a bit more descriptive? Is the resulting network speed slow? Does the device in general become slow to interact with?
So the network speed comes to a crawl. I see excellent upload speeds but horrible download speeds (around 100 Mbps) This is with a 5 Gbps google fiber connection. But upload speeds seem to be good and accurate. I tried with OPNsense, VyOS and having the same issue.
 

blunden

Active Member
Nov 29, 2019
480
145
43
So the network speed comes to a crawl. I see excellent upload speeds but horrible download speeds (around 100 Mbps) This is with a 5 Gbps google fiber connection. But upload speeds seem to be good and accurate. I tried with OPNsense, VyOS and having the same issue.
Weird. Trying on a different port made no difference?

It doesn't match what others have seen, so there must be something different with your setup or device. Are you able to do a local test with iperf3 or something just to check whether that exhibits the same symptoms?
 

azhagan

New Member
Jan 14, 2024
4
0
1
Weird. Trying on a different port made no difference?

It doesn't match what others have seen, so there must be something different with your setup or device. Are you able to do a local test with iperf3 or something just to check whether that exhibits the same symptoms?
I can try running an iperf test and see what happens. Its absolutely really wierd.
 

Arekx

New Member
Apr 12, 2024
1
0
1
Got C3758R in 1U with rj45 and SFP+ ports. That 1U case is designed very badly. There should be no fan intake/outtake under enclosure as in rack there are other devices under, blocking that fan. Airflow should be from front (or sides) to back. The other problem with this design (fan under PCB) is that NVME drives get zero airflow.

Anyway even with fan hole not being blocked by anything the device here runs at 70C and so far I never saw that fan running. Also didn't find any fan settings in BIOS (QDNV0121.V10), so no idea what's going on. Fan itself is working (if I power it from external 5V).

Any ideas how to get this fan working? (using pfsense)



ps. fan is BROAD FAN Model: BF07505H05FP, DC 5V, 0.50A, SHENZHEN BROADWAY TECHNOLOGY CO LTD, 4 wires
ps2. under PCB there is a unpopulated place for second fan connector... I wonder if it would be active if connector got added
 

SCS

New Member
Feb 16, 2017
15
3
3
37
Got C3758R in 1U with rj45 and SFP+ ports. That 1U case is designed very badly. There should be no fan intake/outtake under enclosure as in rack there are other devices under, blocking that fan. Airflow should be from front (or sides) to back. The other problem with this design (fan under PCB) is that NVME drives get zero airflow.

Anyway even with fan hole not being blocked by anything the device here runs at 70C and so far I never saw that fan running. Also didn't find any fan settings in BIOS (QDNV0121.V10), so no idea what's going on. Fan itself is working (if I power it from external 5V).

Any ideas how to get this fan working? (using pfsense)



ps. fan is BROAD FAN Model: BF07505H05FP, DC 5V, 0.50A, SHENZHEN BROADWAY TECHNOLOGY CO LTD, 4 wires
ps2. under PCB there is a unpopulated place for second fan connector... I wonder if it would be active if connector got added

Have a multimeter as you can easily measure the voltage on the pins. Look up a pin out and you should be able to tell what pin is what to compare.
 

Billybong10

New Member
Mar 28, 2023
1
0
1
I bought the Qotom Q20331G9 1U Rackmount version. It shipped in 2 days from China which is insane. I installed PfSense on it and it was running like butter for about 2 hours. Then it died. Anyone else have problems or did I just get a dud? I've been working with the seller through Amazon but they keep asking me what seem to be irrelevant questions. Also the communication is delayed as most of their business hours are when I'm sleeping. I'm hoping they will send me a new board to cut down on shipping but we'll see.
 

SCS

New Member
Feb 16, 2017
15
3
3
37
I bought the Qotom Q20331G9 1U Rackmount version. It shipped in 2 days from China which is insane. I installed PfSense on it and it was running like butter for about 2 hours. Then it died. Anyone else have problems or did I just get a dud? I've been working with the seller through Amazon but they keep asking me what seem to be irrelevant questions. Also the communication is delayed as most of their business hours are when I'm sleeping. I'm hoping they will send me a new board to cut down on shipping but we'll see.


I have the desk mount appliance as I was unaware of the rack mount version. I've been running since the beginning of March. Hasn't been an issue, although waiting for Honeywell PTM7950 SP to come in to swap out TIM to hope to run cooler.
 

farmerj

New Member
Oct 24, 2023
4
1
3
I bought the Qotom Q20331G9 1U Rackmount version. It shipped in 2 days from China which is insane. I installed PfSense on it and it was running like butter for about 2 hours. Then it died. Anyone else have problems or did I just get a dud? I've been working with the seller through Amazon but they keep asking me what seem to be irrelevant questions. Also the communication is delayed as most of their business hours are when I'm sleeping. I'm hoping they will send me a new board to cut down on shipping but we'll see.
Bought the rack mount as well. Noticed that if I have a RJ45 SFP+ Module in one of the sfp cages, it will not cold boot. Power supply lights come on, but power light on the panel does not and it appears dead.
 

OkiieDoe

New Member
Feb 5, 2015
15
3
3
32
I‘ve had the Qotom Q20331G9 1U version for more than a month running OPNsense 13.2 today I did some tuning to get better 10 GB performance Setting used and iperf3 results.

C:
{ sysctl -a | grep -i "hw.machine\|hw.model\|hw.ncpu"; sysctl -n hw.physmem | awk '{ byte =$1 /1024/1024/1024; print byte " GB" }'; }
hw.machine: amd64
hw.model: Intel(R) Atom(TM) CPU C3758R @ 2.40GHz
hw.ncpu: 8
hw.machine_arch: amd64
15.932 GB
C:
System: Settings: Tunables

(qat),CRC,LRO=enable

dev.ix.0.fc=0
dev.ix.1.fc=0
hw.ibrs_disable=1
hw.ix.flow_control=0
net.isr.maxthreads=-1
net.isr.bindthreads=1
net.isr.dispatch=deferred
net.inet.rss.enabled=1
net.inet.rss.bits=3
net.inet.tcp.soreceive_stream=0 (default 0)
net.inet.tcp.tso=1 (default 1)
C:
sudo netstat -Q
Configuration:
Setting                        Current        Limit
Thread count                         8            8
Default queue limit                256        10240
Dispatch policy               deferred          n/a
Threads bound to CPUs          enabled          n/a

Protocols:
Name   Proto QLimit Policy Dispatch Flags
ip         1   1000    cpu   hybrid   C--
igmp       2    256 source  default   ---
rtsock     3    256 source  default   ---
arp        4    256 source  default   ---
ether      5    256    cpu   direct   C--
ip6        6   1000    cpu   hybrid   C--
ip_direct     9    256    cpu   hybrid   C--
ip6_direct    10    256    cpu   hybrid   C--


sudo sysctl -a | grep -i "net.isr\|net.rss\|hw.ix"

net.inet.rss.bucket_mapping: 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
net.inet.rss.enabled: 1
net.inet.rss.debug: 0
net.inet.rss.basecpu: 0
net.inet.rss.buckets: 8
net.inet.rss.maxcpus: 64
net.inet.rss.ncpus: 8
net.inet.rss.maxbits: 7
net.inet.rss.mask: 7
net.inet.rss.bits: 3
net.inet.rss.hashalgo: 2
net.isr.numthreads: 8
net.isr.maxprot: 16
net.isr.defaultqlimit: 256
net.isr.maxqlimit: 10240
net.isr.bindthreads: 1
net.isr.maxthreads: 8
net.isr.dispatch: deferred
hw.ixl.flow_control: -1
hw.ixl.tx_itr: 122
hw.ixl.rx_itr: 62
hw.ixl.shared_debug_mask: 0
hw.ixl.core_debug_mask: 0
hw.ixl.enable_head_writeback: 0
hw.ixl.enable_vf_loopback: 1
hw.ixl.i2c_access_method: 0
hw.ix.enable_aim: 0
hw.ix.enable_rss: 1
hw.ix.enable_fdir: 0
hw.ix.unsupported_sfp: 0
hw.ix.enable_msix: 1
hw.ix.advertise_speed: 0
hw.ix.flow_control: 0
hw.ix.max_interrupt_rate: 31250
C:
ifconfig -v ix0
ix0: flags=8863<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=4e03c2b<RXCSUM,TXCSUM,VLAN_MTU,JUMBO_MTU,LRO,WOL_UCAST,WOL_MCAST,WOL_MAGIC,RXCSUM_IPV6,TXCSUM_IPV6,NOMAP>
        ether *:8a
        media: Ethernet autoselect (10Gbase-SR <full-duplex>)
        status: active
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        plugged: SFP/SFP+/SFP28 10G Base-SR (LC)
        vendor: BROCADE PN: 57-0000075-01 SN: * DATE: 2013-07-03
        module temperature: 52.80 C voltage: 3.35 Volts
        lane 1: RX power: 0.57 mW (-2.41 dBm) TX bias: 8.71 mA

        
ifconfig -v ix1
ix1: flags=8863<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=4e03c2b<RXCSUM,TXCSUM,VLAN_MTU,JUMBO_MTU,LRO,WOL_UCAST,WOL_MCAST,WOL_MAGIC,RXCSUM_IPV6,TXCSUM_IPV6,NOMAP>
        ether *:8a
        hwaddr *:8b
        media: Ethernet autoselect (10Gbase-SR <full-duplex>)
        status: active
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        plugged: SFP/SFP+/SFP28 10G Base-SR (LC)
        vendor: BROCADE PN: 57-0000075-01 SN: * DATE: 2013-07-03
        module temperature: 48.05 C voltage: 3.31 Volts
        lane 1: RX power: 0.65 mW (-1.90 dBm) TX bias: 8.57 mA


lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        description: LAN1 (opt1)
        options=4e03c2b<RXCSUM,TXCSUM,VLAN_MTU,JUMBO_MTU,LRO,WOL_UCAST,WOL_MCAST,WOL_MAGIC,RXCSUM_IPV6,TXCSUM_IPV6,NOMAP>
        ether *:8a
        inet 172.16.99.1 netmask 0xfffffffc broadcast 172.16.99.3
        inet6 * prefixlen 64 scopeid 0xe
        inet6 * prefixlen 64
        laggproto lacp lagghash l2,l3,l4
        lagg options:
                flags=0<>
                flowid_shift: 16
        lagg statistics:
                active ports: 2
                flapping: 0
        lag id:
        laggport: ix0 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> state=3d<ACTIVITY,AGGREGATION,SYNC,COLLECTING,DISTRIBUTING>
        laggport: ix1 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> state=3d<ACTIVITY,AGGREGATION,SYNC,COLLECTING,DISTRIBUTING>
        groups: lagg
        media: Ethernet autoselect
        status: active
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
C:
Windows 10 8c/16gb Proxmox VM

iperf3 -c  172.16.50.100 -P8 -p5001
[ ID] Interval           Transfer     Bitrate         Retr
[SUM]   0.00-10.05  sec  8.32 GBytes  7.10 Gbits/sec  7054             sender
[SUM]   0.00-10.05  sec  8.31 GBytes  7.10 Gbits/sec                  receiver


iperf3 -c  172.16.50.100 -P8 -p5001 -R
[ ID] Interval           Transfer     Bitrate         Retr
[SUM]   0.00-10.01  sec  8.46 GBytes  7.26 Gbits/sec                  sender
[SUM]   0.00-10.00  sec  8.44 GBytes  7.25 Gbits/sec                  receiver


iperf3 -c  172.16.50.100 -P50 -p5001
[ ID] Interval           Transfer     Bitrate         Retr
[SUM]   0.00-10.00  sec  8.31 GBytes  7.14 Gbits/sec  63307             sender
[SUM]   0.00-10.01  sec  8.24 GBytes  7.07 Gbits/sec                  receiver


iperf3 -c  172.16.50.100 -P50 -p5001 -R
Reverse mode,
[ ID] Interval           Transfer     Bitrate         Retr
[SUM]   0.00-10.25  sec  9.38 GBytes  7.86 Gbits/sec                  sender
[SUM]   0.00-10.00  sec  9.30 GBytes  7.99 Gbits/sec                  receive




Loopback Test

iperf3 -c 172.16.99.1 -p5001
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  13.9 GBytes  11.9 Gbits/sec    0             sender
[  5]   0.00-10.00  sec  13.9 GBytes  11.9 Gbits/sec                  receiver


iperf3 -c 172.16.99.1 -P4 -p5001
[ ID] Interval           Transfer     Bitrate         Retr
[SUM]   0.00-10.00  sec  23.6 GBytes  20.3 Gbits/sec  207             sender
[SUM]   0.00-10.00  sec  23.6 GBytes  20.3 Gbits/sec                  receiver


iperf3 -c 172.16.99.1 -P8 -p5001
[SUM]   0.00-10.00  sec  32.7 GBytes  28.0 Gbits/sec  772             sender
[SUM]   0.00-10.00  sec  32.7 GBytes  28.0 Gbits/sec                  receiver


perf3 -c 172.16.99.1  -P50 -p5001
[ ID] Interval           Transfer     Bitrate         Retr
[SUM]   0.00-10.01  sec  33.9 GBytes  29.1 Gbits/sec  1191             sender
[SUM]   0.00-10.01  sec  33.9 GBytes  29.0 Gbits/sec                  receiver


perf3 -c 172.16.99.1  -P50 -p5001 -R
[ ID] Interval           Transfer     Bitrate         Retr
[SUM]   0.00-10.02  sec  33.2 GBytes  28.5 Gbits/sec  1541             sender
[SUM]   0.00-10.00  sec  33.0 GBytes  28.4 Gbits/sec                  receiver